Machine for



2 Sheets-Sheet; i.

J. H. DAKIN. y MACHINE POR DRYING ,BAGASSR No. '7,3757 PatentecLMay 21,1850.

' bagasse or compressed sugar cane as fast as Jas, H. DAKIN, or BATONROUGE, Louisiana.

MACHINE FOR DRYING BAGASSE.

`Sjpeciflcaton ofLetters Patent No. 7,375,4:1ated May 21, 1850.

To all whom t may concern Be it known that I, JAMES 'HARRISON DAKIN, ofthe city of Baton Rouge, in the parish of East Baton Rouge and State ofLouisiana, have invented a new and useful machine or apparatus, which Icall a Bagasse Drier, for drying and making fuel of it sdischarged fromthe cane rollers in the manufacture of sugar from sugar-cane; and I dohereby declare that the following is a clear, full, and exactdescription of the construction and operation of the same, referencebeing had to the annexed drawings, making a part of this specification,in whichy Figure l is a general view of t-he Hank or side elevation, andFig. 2 a longitudinalsection of the works, and Fig. 3 a transversesection of a revolving Hue.y

Letter A, shows the revolving Hue; B, the ordinary or draft Hue ascoming from the furnace under the sugar kettles; C, the ordinarychimney; D, a bagasse chute at the upper end, and E a bagassechute atthe lower end of the revolving Hue A; Gr, mouth or outlet of chute E.

The small letters c c show necks, and b b collars or Hanges near eachend of Hue A, by which means the Hue A is connected to the Hue B and thechimney C.

Letters @L` a a a, &c., show lifting strips upon and around the innersurface of the Hue A; d, friction rollers under collars b, t-o preventthe surface of Hue A, coming in contact with the` sides or surface ofthe necks c c, &c.; e, e, closing Haps to chute mouth G and chutepassage D; f f f, a set of graduated pullies to carry chains for thepurpose of connecting the revolving Hue A, with the machinery of thesugar mill, -or engine of the works, &c., thereby getting the rotarymotion for Hue A. i

Letter g shows the end of the neck c at the lower end of Hue A, turningdown and.

partially closing the end `of that Hue for` the purpose `ofconcentrating the heat thereof,

should it be found necessary.

The parts which are tinted with dicate brick work, &`c

i I place this machine, or apparatus at any convenient point or placefor the reception of bagasse, &c.; then I conduct the Hue B to, andconnect it with the revolving Hue A by means of the neck c. The lowerend of Hue A runs through neck c, and into the chimney lake, in-

` C. The revolving Hue is set to` any suitable angle of inclination,from 6 to l0 degrees below a horizontal plane, as it recedes from theupper end or from itsneck c. At the upper end of Hue A, I HX a bagassechute running at a sharp angle of inclination, down and partly throughneck 0, and into the end of Hue A, as 'at D. Then I place a bagassechute under the lower end of Hue A, running through the chimney C, andout at the mouth or outlet G, as at E. These chutes are each providedwith a closing Hap made of thin light metal, which will have a tendency,always to keep the chutes closed, and thereby preserve the draft of theHues from being impaired. The specific gravity of the `bagasse willalways have an effect to open these Haps, and cause t-he bagasse toslide underthem. From these causes therefore, the chutes will be sonearly closed that they willnot injure the draft of the chimney or Hues.

The Hue A may be `made of thick sheet or boiler iron, and its neck also,or of any other suitable `1netal and the collars or flanges Z), of castiron. In the lowermost collar or Hange I make a groove in which areplaced a number of friction balls as at t, &c., for the purpose of.keeping the opposite surfaces of these lowermost collars from touchingeach other. The pulleys f f f f at the upper end of Hue A, are sograduated as to increase or diminish the revolving speed of Hue A, atpleasure, by'shifting their chain from one gradation or diameter to theother, in the usual manner for such pulleys. This chain may be of thekind called a pich chain, or of that kind called a De Gaucanson chain.The chute D and E, may be made of any suitable metal. rIhe diameterofthe revolving Hue should be about six feet, and its lifting strips aa, &c., should be about ten inches in width, running the whole length ofthe Hue. The Hue should be from twenty to twenty-eight feet in length,and it may be cylindrical or polygonal, in its transverse section, andits longitudinal sides may be parallel or conical at pleasure. itslongitudinal section is conical its heat will be concentrated as itapproaches its lower end, thereby bringing the heat upon the bagasse,with greater intensity.

The Hue A is `now to be put in motion, when the bagasse will be caused,as it comes from the cane rollers, by an endless carrier apparatus orotherwise, to fall into chute D, from which it Will freely slide intothe upper end offlue A, and by means of the inclination and rotarymotion of that flue, it will be carried through its length anddischarged intoy chute E, from which it Will slide out through outlet G,into the atmosphere again. As the closing liap e rises for the passageof the bagasse, the opening at each end Will be closed by sides risingfrom the chute bottom as at c', &c. A

The heat, fire, or flame from the kettle furnace passing through therevolving flue, and coming in direct Contact With the bagasse at thesame time, Will dry it and render it ready as fuel, to be used in thefurnace the moment it escapes from the outlet G.

lThe lifting strips a a, &c., have an effect to carry the bagasse up thesides of flue A, toward its upper surface, When it Will fall again tothe bottom or lower surface, and so on continually through the Hue tothe chute E, and in its passage through the flue, it Will be kept inconstant agitation, causing the heat, &c., to surround every particle ofit in its transit.

The inclination and motion of the revolving flue determines the speed atwhich the bagasse passes through'it, and consequently in a great degreethe state or condition of the bagasse when it escapes from the outlet G,being more or less dry as may be desired.

The figures and letters of reference on the sections and elevation referto corresponding parts, &c.

Vhat I claim as my invention, and desire to secure by Letters Patent,is-

The employment of a revolving or rotary inclined Hue, as applied andused for drying the bagasse, or compressed sugar cane, or any othergreen or Wet substance intended for fuel, with the heat and flame comingfrom the furnace under the sugar kettles, 0r from any furnace, Whatever,all passing into and through this said inclined or rotary flue, at oneand the same time, causing thereby the said bagasse or compressed sugarcane, or other said substance intended for fuel, to become dry andcombustible, and prepared for fuel the moment that it has passed throughsaid flue, using such machinery or mechanical means, as I have hereindescribed, or any other suitable mechanical agency, or means thatWillenable me to carry out, and put into practical execution, or use theprinciple or principles herein set forth, described and claimed, and toobtain the intended objects and results in combination as a Whole.

JAMES HARRISON DAKIN. Witnesses:

MANUEL MORENO, RICHARD LoUoKs.

